CVE-2015-5307

Description

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.26%
Vendor Advisory redhat.com Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory kernel.org Vendor Advisory oracle.com Vendor Advisory oracle.com Vendor Advisory oracle.com Vendor Advisory oracle.com Vendor Advisory xen.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2015-2636.html third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172187.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html mailing list third party advisory vendor advisory
https://kb.juniper.net/JSA10783 third party advisory
http://www.debian.org/security/2016/dsa-3454 third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2015/11/10/6 third party advisory mailing list
http://rhn.redhat.com/errata/RHSA-2015-2645.html third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2802-1 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html mailing list third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html vendor advisory
http://www.ubuntu.com/usn/USN-2806-1 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html mailing list third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html patch vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54a20552e1eae07aa240fa370a0293e006b5faed vendor advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2805-1 third party advisory vendor advisory
http://xenbits.xen.org/xsa/advisory-156.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html mailing list third party advisory vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172300.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2807-1 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2801-1 third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172435.html mailing list third party advisory vendor advisory
http://www.debian.org/security/2015/dsa-3414 third party advisory vendor advisory
http://support.citrix.com/article/CTX202583 third party advisory
http://www.ubuntu.com/usn/USN-2800-1 third party advisory vendor advisory
http://www.securitytracker.com/id/1034105 vdb entry third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2804-1 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1277172 issue tracking third party advisory
http://rhn.redhat.com/errata/RHSA-2016-0046.html third party advisory vendor advisory
http://www.debian.org/security/2015/dsa-3396 third party advisory vendor advisory
http://www.securityfocus.com/bid/77528 vdb entry third party advisory
http://www.ubuntu.com/usn/USN-2803-1 third party advisory vendor advisory
https://github.com/torvalds/linux/commit/54a20552e1eae07aa240fa370a0293e006b5faed vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-5307?
CVE-2015-5307 has been scored as a medium severity vulnerability.
How to fix CVE-2015-5307?
To fix CVE-2015-5307, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-5307 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-5307 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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